COMPOSITE LIGHT-WEIGHT VANE, PRIMARILY FOR AIRCRAFT ENGINE FANS Russian patent published in 2010 - IPC F04D29/38 

FIELD: engines and pumps.

SUBSTANCE: invention relates to aircraft engines and can be used in designs of aircraft engine fan designs. Proposed composite fan consists of shank and vane comprising carcass that forms the vane inner spatial geometry, inner and outer layers of composite reinforcing material applied onto said carcass on its both convex and concave sides to make the vane outer spatial geometry. Said carcass is made up of two parts, i.e. shank part made from easy and rigid material, for example mineral composite. Note here that both aforesaid parts are glued together.

EFFECT: expanded operating performances, reduced weight, ease and lower costs of manufacture.

2 cl, 4 dwg